How far does artist depress it
A 63 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.8 m/s. If the trampoline behaves like a spring of spring constant 6.2×104 N/m, how far does he depress it?
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A 1.00 kg ball strikes a wall with a velocity of 8.0 m/s to the left. The ball bounces off with a velocity of 3.5 m/s to the right. If the ball is in contact with the wall for 0.25 s, what is the constant force exerted on the ball by the wall?
A motorist traveling at 18 m/s encounters a deer in the road 48 m ahead. If the maximum acceleration the vehicle's brakes are capable of is -6m/s^2 what is the maximum reaction time of the motorist that will allow her or him to avoid hitting the d
A 6.40 g lead bullet traveling at 460 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in
A uniform 1.3-kg rod that is 0.80 m long is suspended at rest from the ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring
Explain refraction in terms of a change of wave speed in different media
A boy runs 14.1 blocks north, 13.3 blocks northeast, and 15.3 blocks west. Determine the length of the displacement vector that goes from the starting point to his final position.
An 8.00-kg point mass and a 14.0-kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 12.0 cm from the 8.00-kg mass along the line connecting the two fixed masses. Find the
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.976c. What is the distance measured by a hypothetical person traveling with the particle?
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